George logan



(No Model.)

G. LOGAN. Attachment for Brick Molds.

No. 238,134. Patented-Feb. 22,18

ATTE'STI lNVENT-OR:

N-PETERS, PHOTO-LITHOGMPHER, WASHINGTON. 0.6.

iINITED STATES PATENT QFFICEQ GEORGE LOGAN, OF ST. LOUIS, MISSOURI,ASSIGNOR OF ONE-HALF TO UNION PRESS BRICK WORKS, OF SAME PLACE.

SPECIFICATION formingpart of Letters Patent No. 238,134, dated February22, 1881. Application filed May 28, 1880. (No model.)

To all whom it may concern Be it known that I, GEORGE LOGAN, residing atthe city of St. Louis, in the State of Missouri, have inventedImprovements in Oiling and Oleanin g Attachments for Brick-MachineMolds, of which the following is a specification.

My improvement consists in a roller with a surface of felt or othersuitable material, which is supplied with oil or other grease insufficient quantity to lubricate the top of the moldplunger or risingbottom when it is in its upper position. A scraper removes the earth inadvance of the roller.

In the drawings, Figure 1 is a top View, showing the improvement appliedto a brickmachine of the class having a horizontal revolving mold-wheel.Fig. 2 is a side view of the lubricating-roll and oil-pipe with thesupporting-brackets in section at mm, Fig. 4. Fig. 3 is a transversesection of the roller and oilpipe, with a side view of part of one ofthe supporting-brackets. Fig. 4 is an end view of the roller andscraper, with the oil-pipe in section. Fig. 5 is a longitudinal sectionof a modification of the lubricating-roll. The scale of the otherfigures is larger than that of Fig. 1.

A is a part of the main frame, and B part of a mold-wheel of abrick-machine. O and D are brackets on the frame A for the support ofthe lubricator-roll, oil-pipe, and scraper.

The roll consists of a hub, F, with a circumferential facing, G, of feltor other. suitable material. The facing Gr is in contact with thelifting-bottom H of the mold when it passes beneath, the bottom beingthen in itsupper position, (to which it is lifted to expel the brick,)and as the mold-wheel turns beneath the scraper and roll, the ,top ofthe plunger is cleaned oft'and lubricated, to prevent the adherence ofclay to it. The roller receives-oil from a pipe, I, with a number ofsmall holes, i, allowing the oil to escape evenly over the whole lengthof the lubricating-face of the roll. The pipe is supplied from areservoir, K, and its flow limited by a stop-cock, L. I

M is a scraper or cleaner, which passes over the mold-plunger H inadvance of the lubricating-roll, the purpose being to remove any earththat may be adhering to the plunger, to prevent it from being masheddown by the roll, and adhering both to the roll and the plunger. Thescraper consists of a metallic plate attached to the ends of thebrackets G D by screws N, which pass through slots in the plate andscrew into the brackets. The lower edge, m, of the scraper is formed ofrubber.

The lubricating-roll should have capacity for vertical movement, owingto the fact that the plungers wear off unevenly, and consequently theroller should have means for vertical movement to adapt itself to them.To meet this requirement the roller-gudgeons have bearing in the lowerends of eyebolts O, which pass through the brackets O D, and are held inposition by nuts P and Q bearing against the upper and lower sides ofthe brackets, respectively. Between the nuts Q and the under side of thebrackets are interposed rubber washers It, allowing the eyebolt and thatend of the roller to rise with the plunger which is passing beneath. Thepipe I is carried by bent eyebolts S, passing through the brackets O andD, and held vertically by nuts T U, screwing on the bolts, andbearingagainst the upper and lower sides of the brackets. This manner ofsupporting the pipe I gives means for correcting any divergence from thehorizontal in the pipe, so as to insure the even dropping of the oilfrom the pipe upon the roller from end to end.

In Fig. 4 is shown a modification, in which the roller consists of acylinder, F, rotating on a fixed oil-tube, I, said cylinder having holesextending outwardly, and carrying oil from the interior chamber, F, ofthe cylinder to the permeable lubricating-jacket G.

It will be seen that the roller is set obliquely to a radial line uponthe mold-wheel, so that it does not simply roll around by the action ofthe mold-wheel upon it, but that it also slides upon the surfaces whichit lubricates, so that the action is compoundolfing and rubbing. Theformer presents fresh surfaces to act on the plunger, and the latterapplies the oil in more effective manner than would be done by simplyrolling.

I claim as my invention- 3. The combined scraping and oiling attach-1o 1. The oiling-roll F G, in combination with ment consisting ofbrackets O D, scraper M, the plunger or mold-bottom H, the said rollhaving rubber edge m, hub F, having covering being mounted obliquely toand rotated by G, and pipe I, having perforations 42, as set 5 the saidplunger, as set forth. forth.

2. The oiling attachment consisting of hub GEORGE LOGAN. F, covering G,and oil-pipe I, having perfora- Witnesses: tionsi, in combination with aplunger, H, of a SAML. KNIGHT,

brick-mold frame, as set forth. GEO. H. KNIGHT.

